50251663 has 24 divisors (see below), whose sum is σ = 64010240. Its totient is φ = 38610000.

The previous prime is 50251639. The next prime is 50251681. The reversal of 50251663 is 36615205.

It is not a de Polignac number, because 50251663 - 2¹⁷ = 50120591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50251613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66538 + ... + 67288.

Almost surely, 2^50251663 is an apocalyptic number.

50251663 is a deficient number, since it is larger than the sum of its proper divisors (13758577).

50251663 is a wasteful number, since it uses less digits than its factorization.

50251663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 50251663 is about 7088.8407373844. The cubic root of 50251663 is about 369.0202053649.

Adding to 50251663 its reverse (36615205), we get a palindrome (86866868).

The spelling of 50251663 in words is "fifty million, two hundred fifty-one thousand, six hundred sixty-three".